Mercurial > hg > truffle
annotate src/share/vm/ci/ciEnv.hpp @ 10197:7b23cb975cf2
8011675: adding compilation level to replay data
Reviewed-by: kvn, vlivanov
author | iignatyev |
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date | Thu, 25 Apr 2013 11:09:24 -0700 |
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0 | 1 /* |
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2 * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CI_CIENV_HPP |
26 #define SHARE_VM_CI_CIENV_HPP | |
27 | |
28 #include "ci/ciClassList.hpp" | |
29 #include "ci/ciObjectFactory.hpp" | |
30 #include "classfile/systemDictionary.hpp" | |
31 #include "code/debugInfoRec.hpp" | |
32 #include "code/dependencies.hpp" | |
33 #include "code/exceptionHandlerTable.hpp" | |
34 #include "compiler/oopMap.hpp" | |
35 #include "runtime/thread.hpp" | |
36 | |
0 | 37 class CompileTask; |
38 | |
39 // ciEnv | |
40 // | |
41 // This class is the top level broker for requests from the compiler | |
42 // to the VM. | |
43 class ciEnv : StackObj { | |
44 CI_PACKAGE_ACCESS_TO | |
45 | |
46 friend class CompileBroker; | |
47 friend class Dependencies; // for get_object, during logging | |
48 | |
49 private: | |
50 Arena* _arena; // Alias for _ciEnv_arena except in init_shared_objects() | |
51 Arena _ciEnv_arena; | |
52 int _system_dictionary_modification_counter; | |
53 ciObjectFactory* _factory; | |
54 OopRecorder* _oop_recorder; | |
55 DebugInformationRecorder* _debug_info; | |
56 Dependencies* _dependencies; | |
57 const char* _failure_reason; | |
58 int _compilable; | |
59 bool _break_at_compile; | |
60 int _num_inlined_bytecodes; | |
61 CompileTask* _task; // faster access to CompilerThread::task | |
62 CompileLog* _log; // faster access to CompilerThread::log | |
63 void* _compiler_data; // compiler-specific stuff, if any | |
64 | |
65 char* _name_buffer; | |
66 int _name_buffer_len; | |
67 | |
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68 // Cache Jvmti state |
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69 bool _jvmti_can_hotswap_or_post_breakpoint; |
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70 bool _jvmti_can_access_local_variables; |
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71 bool _jvmti_can_post_on_exceptions; |
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72 |
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73 // Cache DTrace flags |
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74 bool _dtrace_extended_probes; |
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75 bool _dtrace_monitor_probes; |
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76 bool _dtrace_method_probes; |
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77 bool _dtrace_alloc_probes; |
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78 |
0 | 79 // Distinguished instances of certain ciObjects.. |
80 static ciObject* _null_object_instance; | |
81 | |
1142 | 82 #define WK_KLASS_DECL(name, ignore_s, ignore_o) static ciInstanceKlass* _##name; |
83 WK_KLASSES_DO(WK_KLASS_DECL) | |
84 #undef WK_KLASS_DECL | |
0 | 85 |
86 static ciSymbol* _unloaded_cisymbol; | |
87 static ciInstanceKlass* _unloaded_ciinstance_klass; | |
88 static ciObjArrayKlass* _unloaded_ciobjarrayklass; | |
89 | |
90 static jobject _ArrayIndexOutOfBoundsException_handle; | |
91 static jobject _ArrayStoreException_handle; | |
92 static jobject _ClassCastException_handle; | |
93 | |
94 ciInstance* _NullPointerException_instance; | |
95 ciInstance* _ArithmeticException_instance; | |
96 ciInstance* _ArrayIndexOutOfBoundsException_instance; | |
97 ciInstance* _ArrayStoreException_instance; | |
98 ciInstance* _ClassCastException_instance; | |
99 | |
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100 ciInstance* _the_null_string; // The Java string "null" |
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101 ciInstance* _the_min_jint_string; // The Java string "-2147483648" |
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102 |
0 | 103 // Look up a klass by name from a particular class loader (the accessor's). |
104 // If require_local, result must be defined in that class loader, or NULL. | |
105 // If !require_local, a result from remote class loader may be reported, | |
106 // if sufficient class loader constraints exist such that initiating | |
107 // a class loading request from the given loader is bound to return | |
108 // the class defined in the remote loader (or throw an error). | |
109 // | |
110 // Return an unloaded klass if !require_local and no class at all is found. | |
111 // | |
112 // The CI treats a klass as loaded if it is consistently defined in | |
113 // another loader, even if it hasn't yet been loaded in all loaders | |
114 // that could potentially see it via delegation. | |
115 ciKlass* get_klass_by_name(ciKlass* accessing_klass, | |
116 ciSymbol* klass_name, | |
117 bool require_local); | |
118 | |
119 // Constant pool access. | |
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120 ciKlass* get_klass_by_index(constantPoolHandle cpool, |
0 | 121 int klass_index, |
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122 bool& is_accessible, |
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123 ciInstanceKlass* loading_klass); |
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124 ciConstant get_constant_by_index(constantPoolHandle cpool, |
1602 | 125 int pool_index, int cache_index, |
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126 ciInstanceKlass* accessor); |
0 | 127 ciField* get_field_by_index(ciInstanceKlass* loading_klass, |
128 int field_index); | |
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129 ciMethod* get_method_by_index(constantPoolHandle cpool, |
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130 int method_index, Bytecodes::Code bc, |
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131 ciInstanceKlass* loading_klass); |
0 | 132 |
133 // Implementation methods for loading and constant pool access. | |
134 ciKlass* get_klass_by_name_impl(ciKlass* accessing_klass, | |
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135 constantPoolHandle cpool, |
0 | 136 ciSymbol* klass_name, |
137 bool require_local); | |
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138 ciKlass* get_klass_by_index_impl(constantPoolHandle cpool, |
0 | 139 int klass_index, |
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140 bool& is_accessible, |
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141 ciInstanceKlass* loading_klass); |
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142 ciConstant get_constant_by_index_impl(constantPoolHandle cpool, |
1602 | 143 int pool_index, int cache_index, |
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144 ciInstanceKlass* loading_klass); |
0 | 145 ciField* get_field_by_index_impl(ciInstanceKlass* loading_klass, |
146 int field_index); | |
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147 ciMethod* get_method_by_index_impl(constantPoolHandle cpool, |
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148 int method_index, Bytecodes::Code bc, |
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149 ciInstanceKlass* loading_klass); |
0 | 150 |
151 // Helper methods | |
152 bool check_klass_accessibility(ciKlass* accessing_klass, | |
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153 Klass* resolved_klass); |
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154 Method* lookup_method(InstanceKlass* accessor, |
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155 InstanceKlass* holder, |
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156 Symbol* name, |
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157 Symbol* sig, |
0 | 158 Bytecodes::Code bc); |
159 | |
160 // Get a ciObject from the object factory. Ensures uniqueness | |
161 // of ciObjects. | |
162 ciObject* get_object(oop o) { | |
163 if (o == NULL) { | |
164 return _null_object_instance; | |
165 } else { | |
166 return _factory->get(o); | |
167 } | |
168 } | |
169 | |
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170 ciSymbol* get_symbol(Symbol* o) { |
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171 if (o == NULL) { |
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172 ShouldNotReachHere(); |
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173 return NULL; |
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174 } else { |
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175 return _factory->get_symbol(o); |
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176 } |
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177 } |
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178 |
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179 ciMetadata* get_metadata(Metadata* o) { |
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180 if (o == NULL) { |
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181 return NULL; |
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182 } else { |
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183 return _factory->get_metadata(o); |
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184 } |
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185 } |
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186 |
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187 ciInstance* get_instance(oop o) { |
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188 if (o == NULL) return NULL; |
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189 return get_object(o)->as_instance(); |
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190 } |
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191 ciObjArrayKlass* get_obj_array_klass(Klass* o) { |
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192 if (o == NULL) return NULL; |
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193 return get_metadata(o)->as_obj_array_klass(); |
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194 } |
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195 ciTypeArrayKlass* get_type_array_klass(Klass* o) { |
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196 if (o == NULL) return NULL; |
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197 return get_metadata(o)->as_type_array_klass(); |
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198 } |
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199 ciKlass* get_klass(Klass* o) { |
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200 if (o == NULL) return NULL; |
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201 return get_metadata(o)->as_klass(); |
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202 } |
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203 ciInstanceKlass* get_instance_klass(Klass* o) { |
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204 if (o == NULL) return NULL; |
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205 return get_metadata(o)->as_instance_klass(); |
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206 } |
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207 ciMethod* get_method(Method* o) { |
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208 if (o == NULL) return NULL; |
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209 return get_metadata(o)->as_method(); |
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210 } |
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211 ciMethodData* get_method_data(MethodData* o) { |
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212 if (o == NULL) return NULL; |
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213 return get_metadata(o)->as_method_data(); |
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214 } |
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215 |
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216 ciMethod* get_method_from_handle(Method* method); |
0 | 217 |
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218 ciInstance* get_or_create_exception(jobject& handle, Symbol* name); |
0 | 219 |
220 // Get a ciMethod representing either an unfound method or | |
221 // a method with an unloaded holder. Ensures uniqueness of | |
222 // the result. | |
223 ciMethod* get_unloaded_method(ciInstanceKlass* holder, | |
224 ciSymbol* name, | |
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225 ciSymbol* signature, |
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226 ciInstanceKlass* accessor) { |
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227 return _factory->get_unloaded_method(holder, name, signature, accessor); |
0 | 228 } |
229 | |
230 // Get a ciKlass representing an unloaded klass. | |
231 // Ensures uniqueness of the result. | |
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232 ciKlass* get_unloaded_klass(ciKlass* accessing_klass, |
0 | 233 ciSymbol* name) { |
234 return _factory->get_unloaded_klass(accessing_klass, name, true); | |
235 } | |
236 | |
1602 | 237 // Get a ciKlass representing an unloaded klass mirror. |
238 // Result is not necessarily unique, but will be unloaded. | |
239 ciInstance* get_unloaded_klass_mirror(ciKlass* type) { | |
240 return _factory->get_unloaded_klass_mirror(type); | |
241 } | |
242 | |
243 // Get a ciInstance representing an unresolved method handle constant. | |
244 ciInstance* get_unloaded_method_handle_constant(ciKlass* holder, | |
245 ciSymbol* name, | |
246 ciSymbol* signature, | |
247 int ref_kind) { | |
248 return _factory->get_unloaded_method_handle_constant(holder, name, signature, ref_kind); | |
249 } | |
250 | |
251 // Get a ciInstance representing an unresolved method type constant. | |
252 ciInstance* get_unloaded_method_type_constant(ciSymbol* signature) { | |
253 return _factory->get_unloaded_method_type_constant(signature); | |
254 } | |
255 | |
0 | 256 // See if we already have an unloaded klass for the given name |
257 // or return NULL if not. | |
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258 ciKlass *check_get_unloaded_klass(ciKlass* accessing_klass, ciSymbol* name) { |
0 | 259 return _factory->get_unloaded_klass(accessing_klass, name, false); |
260 } | |
261 | |
262 // Get a ciReturnAddress corresponding to the given bci. | |
263 // Ensures uniqueness of the result. | |
264 ciReturnAddress* get_return_address(int bci) { | |
265 return _factory->get_return_address(bci); | |
266 } | |
267 | |
268 // Get a ciMethodData representing the methodData for a method | |
269 // with none. | |
270 ciMethodData* get_empty_methodData() { | |
271 return _factory->get_empty_methodData(); | |
272 } | |
273 | |
274 // General utility : get a buffer of some required length. | |
275 // Used in symbol creation. | |
276 char* name_buffer(int req_len); | |
277 | |
278 // Is this thread currently in the VM state? | |
279 static bool is_in_vm(); | |
280 | |
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281 // Helper routine for determining the validity of a compilation with |
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282 // respect to method dependencies (e.g. concurrent class loading). |
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283 void validate_compile_task_dependencies(ciMethod* target); |
0 | 284 |
285 public: | |
286 enum { | |
287 MethodCompilable, | |
288 MethodCompilable_not_at_tier, | |
289 MethodCompilable_never | |
290 }; | |
291 | |
292 ciEnv(CompileTask* task, int system_dictionary_modification_counter); | |
293 // Used only during initialization of the ci | |
294 ciEnv(Arena* arena); | |
295 ~ciEnv(); | |
296 | |
297 OopRecorder* oop_recorder() { return _oop_recorder; } | |
298 void set_oop_recorder(OopRecorder* r) { _oop_recorder = r; } | |
299 | |
300 DebugInformationRecorder* debug_info() { return _debug_info; } | |
301 void set_debug_info(DebugInformationRecorder* i) { _debug_info = i; } | |
302 | |
303 Dependencies* dependencies() { return _dependencies; } | |
304 void set_dependencies(Dependencies* d) { _dependencies = d; } | |
305 | |
306 // This is true if the compilation is not going to produce code. | |
307 // (It is reasonable to retry failed compilations.) | |
308 bool failing() { return _failure_reason != NULL; } | |
309 | |
310 // Reason this compilation is failing, such as "too many basic blocks". | |
311 const char* failure_reason() { return _failure_reason; } | |
312 | |
313 // Return state of appropriate compilability | |
314 int compilable() { return _compilable; } | |
315 | |
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316 const char* retry_message() const { |
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317 switch (_compilable) { |
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318 case ciEnv::MethodCompilable_not_at_tier: |
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319 return "retry at different tier"; |
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320 case ciEnv::MethodCompilable_never: |
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321 return "not retryable"; |
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322 case ciEnv::MethodCompilable: |
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323 return NULL; |
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324 default: |
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325 ShouldNotReachHere(); |
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326 return NULL; |
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327 } |
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328 } |
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329 |
0 | 330 bool break_at_compile() { return _break_at_compile; } |
331 void set_break_at_compile(bool z) { _break_at_compile = z; } | |
332 | |
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333 // Cache Jvmti state |
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334 void cache_jvmti_state(); |
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335 bool jvmti_can_hotswap_or_post_breakpoint() const { return _jvmti_can_hotswap_or_post_breakpoint; } |
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336 bool jvmti_can_access_local_variables() const { return _jvmti_can_access_local_variables; } |
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337 bool jvmti_can_post_on_exceptions() const { return _jvmti_can_post_on_exceptions; } |
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338 |
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339 // Cache DTrace flags |
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340 void cache_dtrace_flags(); |
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341 bool dtrace_extended_probes() const { return _dtrace_extended_probes; } |
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342 bool dtrace_monitor_probes() const { return _dtrace_monitor_probes; } |
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343 bool dtrace_method_probes() const { return _dtrace_method_probes; } |
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344 bool dtrace_alloc_probes() const { return _dtrace_alloc_probes; } |
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345 |
0 | 346 // The compiler task which has created this env. |
347 // May be useful to find out compile_id, comp_level, etc. | |
348 CompileTask* task() { return _task; } | |
349 // Handy forwards to the task: | |
350 int comp_level(); // task()->comp_level() | |
351 uint compile_id(); // task()->compile_id() | |
352 | |
353 // Register the result of a compilation. | |
354 void register_method(ciMethod* target, | |
355 int entry_bci, | |
356 CodeOffsets* offsets, | |
357 int orig_pc_offset, | |
358 CodeBuffer* code_buffer, | |
359 int frame_words, | |
360 OopMapSet* oop_map_set, | |
361 ExceptionHandlerTable* handler_table, | |
362 ImplicitExceptionTable* inc_table, | |
363 AbstractCompiler* compiler, | |
364 int comp_level, | |
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365 bool has_unsafe_access, |
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366 bool has_wide_vectors); |
0 | 367 |
368 | |
369 // Access to certain well known ciObjects. | |
1142 | 370 #define WK_KLASS_FUNC(name, ignore_s, ignore_o) \ |
371 ciInstanceKlass* name() { \ | |
372 return _##name;\ | |
0 | 373 } |
1142 | 374 WK_KLASSES_DO(WK_KLASS_FUNC) |
375 #undef WK_KLASS_FUNC | |
376 | |
0 | 377 ciInstance* NullPointerException_instance() { |
378 assert(_NullPointerException_instance != NULL, "initialization problem"); | |
379 return _NullPointerException_instance; | |
380 } | |
381 ciInstance* ArithmeticException_instance() { | |
382 assert(_ArithmeticException_instance != NULL, "initialization problem"); | |
383 return _ArithmeticException_instance; | |
384 } | |
385 | |
386 // Lazy constructors: | |
387 ciInstance* ArrayIndexOutOfBoundsException_instance(); | |
388 ciInstance* ArrayStoreException_instance(); | |
389 ciInstance* ClassCastException_instance(); | |
390 | |
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391 ciInstance* the_null_string(); |
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392 ciInstance* the_min_jint_string(); |
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393 |
0 | 394 static ciSymbol* unloaded_cisymbol() { |
395 return _unloaded_cisymbol; | |
396 } | |
397 static ciObjArrayKlass* unloaded_ciobjarrayklass() { | |
398 return _unloaded_ciobjarrayklass; | |
399 } | |
400 static ciInstanceKlass* unloaded_ciinstance_klass() { | |
401 return _unloaded_ciinstance_klass; | |
402 } | |
403 | |
404 ciKlass* find_system_klass(ciSymbol* klass_name); | |
405 // Note: To find a class from its name string, use ciSymbol::make, | |
406 // but consider adding to vmSymbols.hpp instead. | |
407 | |
408 // converts the ciKlass* representing the holder of a method into a | |
409 // ciInstanceKlass*. This is needed since the holder of a method in | |
410 // the bytecodes could be an array type. Basically this converts | |
411 // array types into java/lang/Object and other types stay as they are. | |
412 static ciInstanceKlass* get_instance_klass_for_declared_method_holder(ciKlass* klass); | |
413 | |
414 // Return the machine-level offset of o, which must be an element of a. | |
415 // This may be used to form constant-loading expressions in lieu of simpler encodings. | |
416 int array_element_offset_in_bytes(ciArray* a, ciObject* o); | |
417 | |
418 // Access to the compile-lifetime allocation arena. | |
419 Arena* arena() { return _arena; } | |
420 | |
421 // What is the current compilation environment? | |
422 static ciEnv* current() { return CompilerThread::current()->env(); } | |
423 | |
424 // Overload with current thread argument | |
425 static ciEnv* current(CompilerThread *thread) { return thread->env(); } | |
426 | |
427 // Per-compiler data. (Used by C2 to publish the Compile* pointer.) | |
428 void* compiler_data() { return _compiler_data; } | |
429 void set_compiler_data(void* x) { _compiler_data = x; } | |
430 | |
431 // Notice that a method has been inlined in the current compile; | |
432 // used only for statistics. | |
433 void notice_inlined_method(ciMethod* method); | |
434 | |
435 // Total number of bytecodes in inlined methods in this compile | |
436 int num_inlined_bytecodes() const; | |
437 | |
438 // Output stream for logging compilation info. | |
439 CompileLog* log() { return _log; } | |
440 void set_log(CompileLog* log) { _log = log; } | |
441 | |
442 // Check for changes to the system dictionary during compilation | |
443 bool system_dictionary_modification_counter_changed(); | |
444 | |
445 void record_failure(const char* reason); | |
446 void record_method_not_compilable(const char* reason, bool all_tiers = true); | |
447 void record_out_of_memory_failure(); | |
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448 |
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449 // RedefineClasses support |
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450 void metadata_do(void f(Metadata*)) { _factory->metadata_do(f); } |
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451 |
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452 // Dump the compilation replay data for the ciEnv to the stream. |
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453 void dump_replay_data(outputStream* out); |
0 | 454 }; |
1972 | 455 |
456 #endif // SHARE_VM_CI_CIENV_HPP |